[Libav-user] Preserve aspect ration while using sws_scale() API
ggarra13 at gmail.com
Mon Aug 3 20:03:40 EEST 2020
On 3/8/20 03:47, rohit khali wrote:
> I am using sws_scale() API to scale my decoded YUV(any format) to
> YUV420P with 'new' width and height.
> Instead of hardcoding destination width and height, I want to preserve
> the original aspect ratio. My idea was to provide destination height
> and let API decide on width using aspect ratio.
> Is there a way to achieve this?
> Thanks in advance for the help!
There's nothing in the ffmpeg api to do it, but you can do it yourself
double aratio = (double) width / height;
size_t newwidth = aratio * newheight;
Or is there something else I am missing?
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